<template>
  <el-container class="main-container">
    <!-- 头部区域 -->
    <el-header>
      <!-- 左侧的 logo -->
      <img src="../../assets/images/logo.png" alt="" />
      <!-- 右侧的菜单 -->
      <el-menu
        class="el-menu-top"
        mode="horizontal"
        background-color="#23262E"
        text-color="#fff"
        active-text-color="#409EFF"
      >
        <el-submenu index="1">
          <template slot="title">
            <!-- 头像 -->
            <img
              :src="userInfo.user_pic"
              alt=""
              class="avatar"
              v-if="userInfo.user_pic"
            />
            <img src="../../assets/logo.png" alt="" class="avatar" v-else />
            <span>个人中心</span>
          </template>
          <el-menu-item index="1-1"
            ><i class="el-icon-s-operation"></i>基本资料</el-menu-item
          >
          <el-menu-item index="1-2"
            ><i class="el-icon-camera"></i>更换头像</el-menu-item
          >
          <el-menu-item index="1-3"
            ><i class="el-icon-key"></i>重置密码</el-menu-item
          >
        </el-submenu>
        <el-menu-item index="2" @click="logout"
          ><i class="el-icon-switch-button"></i>退出</el-menu-item
        >
      </el-menu>
    </el-header>
    <el-container>
      <!-- 左侧边栏区域 -->
      <el-aside width="200px">
        <div class="user-box">
          <img
            :src="userInfo.user_pic"
            alt=""
            class="avatar"
            v-if="userInfo.user_pic"
          />
          <img src="../../assets/logo.png" alt="" class="avatar" v-else />
          <span>欢迎 {{ userInfo.nickname || userInfo.username }}</span>
        </div>
        <el-menu
          :default-active="$route.path"
          class="el-menu-vertical-demo"
          background-color="#23262E"
          text-color="#fff"
          active-text-color="#409EFF"
          unique-opened
          router
        >
        <!-- 模板标签 起到包裹标签的作用,不会影响渲染dom结构 -->
        <template v-for="item in menuList">
          <!-- 不包含子菜单的“一级菜单” -->`
          <el-menu-item :index="item.indexPath" :key="item.indexPath" v-if="!item.children"
            ><i :class="item.icon"></i>{{item.title}}</el-menu-item
          >
          <!-- 包含子菜单的“一级菜单” -->
          <el-submenu :index="item.indexPath" :key="item.indexPath" v-else>
            <template slot="title">
              <i :class="item.icon"></i>
              <span>{{item.title}}</span>
            </template>
            <el-menu-item :index="subItem.indexPath" v-for="subItem in item.children" :key="subItem.indexPath"
              ><i :class="subItem.icon"></i>{{subItem.title}}</el-menu-item>
          </el-submenu>
        </template>

         
        </el-menu>
      </el-aside>
      <el-container>
        <!-- 页面主体区域 -->
        <el-main> <router-view></router-view> </el-main>
        <!-- 底部 footer 区域 -->
        <el-footer>© www.itheima.com - 黑马程序员</el-footer>
      </el-container>
    </el-container>
  </el-container>
</template>

<script>
import { mapState } from "vuex";
export default {
  name: "Main",
  data(){
    return {
      menuList: []
    }
  },
  methods: {
    //获取菜单数据
    async getMenuList(){
      const {data:res} = await this.$http.get('/my/menus')
      if(res.code === 0){
        this.menuList = res.data
      }
    },

    //首页退出登录
    logout() {
      this.$confirm("您确认退出登录吗", "警告", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      })
        .then(() => {
          // 1. 清空 token
          this.$store.commit("updateToken", "");
          // 清空userInfo
          this.$store.commit('updateUserInfo','')
          // 2. 跳转到登录页面
          this.$router.push("/login");
        })
        .catch((err) => err);
    },
  },
  computed: {
    ...mapState(["userInfo","token"]),
  },
  created() {
    // 判断有没有token,有,说明登录了,没有,返回登录页
    if(this.token){
      this.$store.dispatch("initUserInfo");
      // console.log(this.$store.state.userInfo, "this.$store.state.userInfo");
      this.getMenuList()
    }else{
      this.$router.push('/login')
    }

  },
};
</script>

<style lang="less" scoped>
.main-container {
  height: 100%;
  .el-header,
  .el-aside {
    background-color: #23262e;
  }
  .el-header {
    padding: 0;
    display: flex;
    justify-content: space-between;
  }
  .el-main {
    overflow-y: scroll;
    height: 0;
    background-color: #f2f2f2;
  }
  .el-footer {
    background-color: #eee;
    font-size: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
  }
}

.avatar {
  border-radius: 50%;
  width: 35px;
  height: 35px;
  background-color: #fff;
  margin-right: 10px;
  object-fit: cover;
}
// 左侧边栏用户信息区域
.user-box {
  height: 70px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-top: 1px solid #000;
  border-bottom: 1px solid #000;
  user-select: none;
  img {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background-color: #fff;
    margin-right: 15px;
    object-fit: cover;
  }
  span {
    color: white;
    font-size: 12px;
  }
}
// 侧边栏菜单的样式
.el-aside {
  .el-submenu,
  .el-menu-item {
    width: 200px;
    user-select: none;
  }
}
</style>
